EP 4251304 A1 20231004 - DIRECT AIR CAPTURE AND CONCENTRATION OF CO2 USING ADSORBENTS
Title (en)
DIRECT AIR CAPTURE AND CONCENTRATION OF CO2 USING ADSORBENTS
Title (de)
DIREKTE LUFTERFASSUNG UND KONZENTRATION VON CO2 UNTER VERWENDUNG VON ADSORPTIONSMITTELN
Title (fr)
CAPTURE DIRECTE D'AIR ET CONCENTRATION DE CO2 UTILISANT DES ADSORBANTS
Publication
Application
Priority
- US 202063118926 P 20201129
- CA 2021051696 W 20211126
Abstract (en)
[origin: WO2022109746A1] This disclosure provides an apparatus and method for capturing CO2 from air, particularly from air having a temperature equal to or less than 0oC, and/or a humidity less than 5g of H2O per kg of air, using adsorbents. The apparatus includes an enclosure having an internal volume that contains a CO2 adsorbent bed, and a vacuum source, an input air source, and heater coupled to the enclosure such that the contents, pressure, and temperature of the interior volume of the enclosure can be controlled. Adsorbents for capturing CO2 comprise a zeolite, metal organic framework, covalent organic framework, silica, or alumina. The method provides for flowing input air into an interior volume of an enclosure containing CO2 adsorbent material, heating the CO2 adsorbent material to release the trapped CO2 and collecting it, and re-equilibrating the pressure of the enclosure.
IPC 8 full level
B01D 53/62 (2006.01); B01D 53/02 (2006.01); B01D 53/047 (2006.01); B01D 53/26 (2006.01)
CPC (source: DK EP US)
B01D 53/0438 (2013.01 - US); B01D 53/0462 (2013.01 - DK EP US); B01D 53/047 (2013.01 - DK EP); B01D 53/0476 (2013.01 - US); B01D 53/261 (2013.01 - DK EP); B01D 2257/504 (2013.01 - DK EP US); B01D 2258/06 (2013.01 - DK EP); B01D 2259/40035 (2013.01 - US); Y02C 20/40 (2020.08 - EP)
Citation (search report)
See references of WO 2022109746A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2022109746 A1 20220602; CA 3200387 A1 20220602; DK 202370339 A1 20230712; EP 4251304 A1 20231004; US 2024001286 A1 20240104
DOCDB simple family (application)
CA 2021051696 W 20211126; CA 3200387 A 20211126; DK PA202370339 A 20230627; EP 21896016 A 20211126; US 202118254916 A 20211126